Imation Royal Guard 3480 Cartridge #43401 ? Extra Long Length, 300MB, 807? For accurate and reliable tape backup and archiving of your data, choose Imation Royal Guard 3480 300MB Certified Tapes. The Royal Guard 3480 807 #43401 tape cartridge has 300 MB of native space and up to 1 GB of compressed space. The tape length of the Imation Royal Guard 3480 tape cartridge is 807 feet. Just as with Imations other 3480 tape line-up, the Royal Guard3480 300 MB tape by Imation provides a proprietary back coating that repels error causing static electricity featuring FlashGuard, which absorbs debris and protects against damage to you tape and your information by providing a trap for unwanted weld debris or flash. The Imation Royal Guard 3480 cartridge #43401 offers precision tape spooling ensuring even tape winding and improved tape stacking, protecting your data from unwanted mishaps.